[ The PC Guide | Systems and Components Reference Guide | Hard Disk Drives | Hard Disk Interfaces and Configuration | Small Computer Systems Interface (SCSI) | SCSI Data Transfer Modes and Feature Sets ]

Description: With the creation of so many new types of SCSI over the years, the oldest SCSI implementations really have no specific name; they are sometimes called "regular" SCSI or other similar names. Since the only type of SCSI defined by the original SCSI-1 standard is this "plain" variety, some people call this variety of SCSI "SCSI-1".

Defining Standard: SCSI-1.

Special Features: None.

Bus Width: Narrow (8-bit).

Signaling Method: SE or HVD.

Signaling Speed and Bus Throughput: 5 MHz bus speed; 5 MB/s.

Number of Devices Supported: 8.

Termination: For SE, any type (passive, active or forced perfect termination). For HVD, HVD termination.

Cabling and Maximum Cable Length: "A" cable (50 pins). Maximum of 6m for SE, 25m for HVD.

Next: Wide SCSI

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